***Special anniversary edition, with a new introduction from Peter James***

He almost took your life. Now his is in your hands . . .

When Leanne, a homeless young girl, is murdered beside a canal in North London, the police are certain that known oddball Michael Doll is the killer.

Psychologist Kit Quinn, assisting the investigation, has her own reasons to despise Doll.

But she soon realises that the case is more complicated than the investigators suspect.

Because Kit has found a link to another death. Which means they might have a serial killer on their hands . . .

''The writing has that rare ability to reach out from the page into your soul, grip your heartstrings, and not let go of them until the very end'' Peter James